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lyudmila [28]
3 years ago
11

Help please))) please i need your help!!!)

Mathematics
2 answers:
eduard3 years ago
8 0

3) Find the perimeter: Add all numbers with the same amount of variables together:

3a + 4a + 5a = 12a

12a is perimeter

4) (3b - 5) + (3b - 5) + b

Add numbers with variables together, and the constants together

3b + 3b + b = 7b

-5 + -5 = -5 - 5 = -10

7b - 10 is the perimeter


hope this helps

Nataliya [291]3 years ago
5 0

3. 12 a

4. 7b-10

all you have to do is add up all of the sides.


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Number is 22 round down to
alina1380 [7]

Answer:

22 rounds down to 20 if that is what you are asking

Step-by-step explanation:

You did not finish your question i dont think. 22 DOES round down to 20 though.

3 0
3 years ago
Seven times a number equals<br> 70<br> Show work
DerKrebs [107]

Answer:

7 times 10 equals 70

Step-by-step explanation:

70 divided by 7 equal 10 and 70 divided by 10 equal 7

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Read 2 more answers
Could you please help me with this problem?
NeTakaya

First Question:

Number of trapezoids - 6

Perimeter - 72

3 + 3 + 3 + 6 = <u>15</u>

3 + 3 + 3 + 3 + 6 + 6 = <u>24</u>

3 + 3 + 6 + 3 + 3 + 6 + 3 + 6 = <u>33</u>

15 + 24 + 33 = <u>72</u>

Second Question:

Number of cubes - 6

Surface area - 24 (probably 480 since it said <em>area</em>)

first cube - 6 ones

second cube - 8 ones

Third cube - 10 ones

you could do 6 + 8 + 10 = 24 or add up all the ones (1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1) and you will still get 24

(It said <em>area</em>, and area means to multiply so maybe its 6 x 8 x 10 = 480 and not 6 + 8 + 10)

Anyways have a good day/night :) I might be wrong, but I hope I helped at least a little

3 0
2 years ago
Please Help Me!
nikitadnepr [17]

Answer:

63

Step-by-step explanation:

4*15=60 60*3.14=188.4 188.4*1/3= 62.8 rounded that would be 63

3 0
3 years ago
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